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/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/***************************************************************************
* Module menu_attribs *
* Control menus display attributes *
***************************************************************************/
#include "menu.priv.h"
/* Macro to redraw menu if it is posted and changed */
#define Refresh_Menu(menu) \
if ( (menu) && ((menu)->status & _POSTED) )\
{\
_nc_Draw_Menu( menu );\
_nc_Show_Menu( menu );\
}
/* "Template" macro to generate a function to set a menus attribute */
#define GEN_MENU_ATTR_SET_FCT( name ) \
int set_menu_ ## name (MENU * menu, chtype attr)\
{\
if (!(attr==A_NORMAL || (attr & A_ATTRIBUTES)==attr))\
RETURN(E_BAD_ARGUMENT);\
if (menu && ( menu -> name != attr))\
{\
(menu -> name) = attr;\
Refresh_Menu(menu);\
}\
Normalize_Menu( menu ) -> name = attr;\
RETURN(E_OK);\
}
/* "Template" macro to generate a function to get a menus attribute */
#define GEN_MENU_ATTR_GET_FCT( name ) \
chtype menu_ ## name (const MENU * menu)\
{\
return (Normalize_Menu( menu ) -> name);\
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_fore(MENU *menu, chtype attr)
|
| Description : Set the attribute for selectable items. In single-
| valued menus thiis is used to highlight the current
| item ((i.e. where the cursor is), in multi-valued
| menus this is used to highlight the selected items.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - an invalid value has been passed
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_SET_FCT( fore )
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : chtype menu_fore(const MENU* menu)
|
| Description : Return the attribute used for selectable items that
| are current (single-valued menu) or selected (multi-
| valued menu).
|
| Return Values : Attribute value
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_GET_FCT( fore )
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_back(MENU *menu, chtype attr)
|
| Description : Set the attribute for selectable but not yet selected
| items.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - an invalid value has been passed
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_SET_FCT( back )
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : chtype menu_back(const MENU *menu)
|
| Description : Return the attribute used for selectable but not yet
| selected items.
|
| Return Values : Attribute value
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_GET_FCT( back )
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_grey(MENU *menu, chtype attr)
|
| Description : Set the attribute for unselectable items.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - an invalid value has been passed
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_SET_FCT( grey )
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : chtype menu_grey(const MENU *menu)
|
| Description : Return the attribute used for non-selectable items
|
| Return Values : Attribute value
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_GET_FCT( grey )
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_pad(MENU *menu, int pad)
|
| Description : Set the character to be used to separate the item name
| from its description. This must be a printable
| character.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - an invalid value has been passed
+--------------------------------------------------------------------------*/
int set_menu_pad(MENU *menu, int pad)
{
bool do_refresh = !(menu);
if (!isprint((unsigned char)pad))
RETURN(E_BAD_ARGUMENT);
Normalize_Menu( menu );
menu->pad = pad;
if (do_refresh)
Refresh_Menu( menu );
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int menu_pad(const MENU *menu)
|
| Description : Return the value of the padding character
|
| Return Values : The pad character
+--------------------------------------------------------------------------*/
int menu_pad(const MENU * menu)
{
return (Normalize_Menu( menu ) -> pad);
}
/* m_attribs.c ends here */
|
